In providing a continued focus on tasks and activities that help to illustrate key ideas embedded in the new Australian Curriculum, this issue the authors focus, on Geometry in the Measurement and Geometry strand with strong links for an integrated focus on the Statistics and Probability strand. The small unit of work on the sorting and classifying of shapes presented in this article are activities that can be modified to meet the requirements of particular year level descriptors in the aspects of the Measurement and Geometry strand. There is also a direct link to the Statistics and Probability strand through the collection, the classification and the recording of the data. Where appropriate, elaborations are listed beneath each content descriptor.